(under subclass 569) Subject matter wherein the projectile comprises a relatively heavy, either oblately shaped or
disk-shaped body (usually made from stone or iron) having a player graspable means (usually a handle) located in the vicinity of its upper pole surface and having its lower pole surface flattened or otherwise provided with means whereby the projectile may readily slide over a generally flat, icy or the like surface, which projectile being intended to be used in the play of the game commonly known as curling in which players play the game upon an icy or the like surface by launching at least one of the projectiles by means of its handle or other player graspable means so that it slides freely over the surface toward a target located at a distance from the point of projection of the projectile.
(1) Note. The projectile may have some form of antifrictional means for simulating sliding action thereof over a flat, icy surface. For example, the projectile may have one or more ball bearings rollably mounted in, and extending partially outwardly from, the lower surface thereof for supporting the projectile upon a flat surface formed from a material other than ice whereby, when the projectile is projected upon a flat surface other than ice, it will move over the surface by means of the rotation of its supporting ball bearings to give the appearance of a projectile sliding over an icy surface.
